# Altur > Voice AI agents for debt collection and sales. Altur runs collection and sales calls end to end, negotiating payment plans and following up by WhatsApp and SMS, for financial institutions in Latin America. Backed by Y Combinator. ## Site - [Home](https://www.altur.io/en): What Altur does, how it works, security and compliance - [Inicio](https://www.altur.io/es): Spanish version of the home page - [InĂ­cio](https://www.altur.io/pt): Portuguese version of the home page - [Case study: How R2 cut collections costs 70% across 5 countries with AI](https://www.altur.io/en/blog/how-r2-cut-collections-costs-70-percent) - [Schedule a demo](https://form.typeform.com/to/u0nZ8iam) - [Careers](https://www.altur.io/en/careers) ## Docs - [Developer documentation](https://docs.altur.io/llms.txt): Agents, campaigns, and API reference